var tc = textToCopy.replace(/nn/g, 'n'); if (window.clipboardData) // IE { window.clipboardData.setData("Text", tc); } else { unsafeWindow.netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); const clipboardHelper = Components.classes ["@mozilla.org/widget/clipboardhelper;1"]. getService(Components.interfaces.nsIClipboardHelper); clipboardHelper.copyString(tc); }